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modified: 2025-02-20T21:09:22-07:00

JoyKey

This is a small macropad that simultaneously acts as game controller and an entertainment device.

The name is inspired by the Nintendo JoyCon portmanteau (Joystick Controller) except I have replaced the 2nd word with "Keypad" (Joystick Keypad). See name ideas for other things I came up with.

My main repo were development will continue: https://github.com/techy-robot/JoyKey

Features

• Customizable macro pad using QMK firmware
• Game controller mimicking a joy-con
• Offline games that can be played on the display with no connections
• Small handheld size
• Linear keys

Approoved Parts BOM

• 8 Cherry mx Red keys with clear shell variant
• 8 Black keycaps
• 128x64 px SSD1306-based monochrome display near the top
• SEEED Xiao RP2040 (can be replaced later w/ SEEED xiao MG24 or nRF52840 Sense for BLE and other goodies)
• 12 Sk6812 Mini-E reverse mount RGB leds
• 3 M3x16 screws and M3 heatsets

Extra Parts BOM

• 1 Analog PS2 Joystick (I already have)
• 1 Alps SRBE110301. (flat volume dial on the side). LCSC #C160861
• AP2112K-3.3 Linear Regulator. LCSC #C51118
• MCP73831T-2ACI/OT Lipo Battery Charger. LCSC #C424093
• 4 10uf 0805 capacitors. LCSC #C15850
• DMG3415 Sot23-3 PMOS. LCSC #C7202986
• 3 10k 0805 resistors. LCSC #C17414
• 1 2k 0805 resistor. LCSC #C17604
• 1 0603 LED. LCSC #C2286
• 1 LSM6DS3 LCSC #C967633
• JST PH S2B smd LCSC #C295747
• 12 1N4148W diodes LCSC #C2128
• 1 MBR0540 schotkey LCSC #C78545

Pictures

Case

PCB

Bottom Top

Schematic

Sprite Credit

All icons that are converted using qmk's command line tool were originally from Nikoichu's 1-bit Pixel Icons set, which is licensed CC0 1.0